Trade data for government agencies

Engine efficiency (methods and Trade data for government agenciestechnologies to improve engine fuel efficiency) With the popularity of automobiles, energy conservation and emission reduction have become one of the core issues of concern in the global automobile industry. The engine is the "heart" of the car, and the improvement of fuel efficiency plays a crucial role in improving the energy efficiency of the car. So, how to improve the fuel efficiency of the engine? 1. Aiming for combustion efficiency and fuel efficiency depends on multiple factors, the most critical of which is combustion efficiency.For internal combustion engines, especially gasoline engines, the design of the combustion chamber and the fuel injection system are key elements. Adjusting the fuel injection time, pump volume, fuel injector, pressure and other parameters can affect the combustion efficiency and fuel efficiency. The traditional fuel injector adopts an electromagnetic nozzle, which has the disadvantages of long injection time and low injection accuracy, which affects the utilization efficiency of fuel. Nowadays, piezoelectric fuel injectors have become a trend because of their advantages such as high-speed fuel injection and small jet dispersion. For example, unlike electromagnetic fuel injectors, piezoelectric fuel injectors use vibration at both ends to adjust the switch and size of the fuel injector. In this way, accurate and efficient fuel injection can be achieved, the combustion efficiency of fuel can be improved, and thus the fuel efficiency can be improved. Two. Engine thermal management ability The combustion process of the engine will generate a large amount of heat, and controlling the temperature of the engine can significantly affect the fuel efficiency.Lowering the temperature can reduce heat loss and improve the efficiency of oil utilization. Upgrading the thermal management ability of the engine is an important way to improve fuel efficiency. Adopting the relatively mainstream "preheating" technology in recent years, it is directly injected into the cold end of the intake valve through high pressure, so that the heat transmitted to the intake duct and cylinder is reduced, so as to improve the thermal management ability of the engine and thus improve fuel efficiency. In addition, using remote control technology to master the working status of the engine can achieve efficient operation of the engine. Under the high-load and low-load operating conditions of the engine, different strategies are adopted for engine control to achieve high power and high fuel efficiency at the same time. 3. The use of lightweight materials and new materials. The use of lightweight materials and new materials in engine design is also an important means to improve fuel efficiency and make the engine lighter and more compact.At present, materials such as aluminum alloy and titanium alloy have entered the field of engine manufacturing and are used to make parts such as cylinder heads, cylinder blocks, crankcases and cabin covers, replacing traditional cast iron and steel materials. Using these lightweight materials to handle the weight and volume of the engine can effectively reduce fuel consumption. In addition, using new ceramic materials to make the combustion chamber, piston and other parts of the engine can greatly improve the thermal efficiency of the engine. This material has the advantages of low thermal mass, low heat capacity, high temperature heat dissipation, etc., which can dissipate heat faster, reduce the temperature of the engine, and improve fuel efficiency. In a word, improving engine fuel efficiency is an important way to improve the energy utilization of automobiles, and many technologies and methods need to be applied to achieve the goal. By adjusting the fuel injection system, the thermal management ability of the engine can be improved.Optimizing the engine with technical methods such as lightweight materials and new ceramic materials will certainly significantly improve the fuel efficiency of the engine, which will have an important impact on our lives.

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